US5227252A - Electroluminescent device - Google Patents
Electroluminescent device Download PDFInfo
- Publication number
- US5227252A US5227252A US07/643,985 US64398591A US5227252A US 5227252 A US5227252 A US 5227252A US 64398591 A US64398591 A US 64398591A US 5227252 A US5227252 A US 5227252A
- Authority
- US
- United States
- Prior art keywords
- emitting layer
- electroluminescent device
- fluorescent emitting
- cathode
- quinacridone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/917—Electroluminescent
Definitions
- the present invention relates to an electroluminescent device, more specifically to an electroluminescent device consisting of organic compounds as emitter.
- FIG. 1 As such type of electroluminescent devices, there have been known a two-layer structure, as is shown in FIG. 1, in which an organic fluorescent film 3 and an organic positive-hole transporting layer 4 are arranged between a metal electrode 1 as cathode and a transparent electrode 2 as anode, the two layers both comprising organic compounds and being layered on each other, and a three-layer structure, as is shown in FIG. 2, in which an organic electron transporting layer 5, an organic fluorescent film 3 and an organic positive-hole transporting layer 4, are arranged between a metal electrode 1 and a transparent electrode 2.
- the organic positive-hole transporting layer 4 herein has a function to facilitate the injection of positive holes from an anode as well as another function to block electrons, while the organic electron transporting layer 5 has a function to facilitate the injection of electrons from a cathode.
- excitons are generated from the recombination of the electrons injected from the metal electrode 1 with the positive holes injected to the organic fluorescent film 3 from the transparent electrode 2. At the stage where the excitons are inactivated through radiation, they emit light which is then emitted toward outside through the transparent electrode 2 and the glass substrate 6.
- electroluminescent devices comprising a fluorescent film formed from an organic host material and a fluorescent guest material.
- the conventional electroluminescent devices with such aforementioned composition comprising organic compounds can emit light at a lower voltage, there is a desire toward electroluminescent devices capable of emission at a high luminance.
- the present invention is intended to provide electroluminescent devices capable of emission at a high luminance for a long period of time.
- the electroluminescent devices of the present invention wherein a fluorescent emitting layer and a positive-hole transporting layer are arranged between a cathode and an anode, the two layers being layered on each other, and the fluorescent emitting layer comprises a quinoline derivative, is characterized by containing, in the fluorescent emitting layer, a quinacridone compound in the structure of the following formula (A); ##STR2## where R 1 and R 2 are independently hydrogen, methyl group or chlorine (Quino[2,3-b] acridine-5,12-dihydro-7,14-dione).
- the electroluminescent devices of the present invention wherein a fluorescent emitting layer and a positive-hole transporting layer are arranged between a cathode and an anode, the two layers being layered on each other and the fluorescent emitting layer comprises a quinoline derivative, is characterized by containing, in the fluorescent emitting layer, the dihydride form of a quinacridone compound in the structure of the following formula (C); ##STR3## where R 3 and R 4 are independently hydrogen, methyl group or chlorine (Quino[2,3-b] acridine-5,6,12,13-tetrahydro-7,14-dione).
- FIGS. 1 and 2 are figures representing the structures of organic compound electroluminescent devices
- FIG. 3 are graphs representing the emission characteristics of electroluminescent devices
- FIG. 4 are graphs representing voltage- and electric current-specificity of electroluminescent devices
- FIGS. 5 and 6 are graphs showing the distribution of emission spectra regarding electroluminescent devices.
- the electroluminescent device in accordance with the present invention is formed into a film, by layering a fluorescent emission layer and a positive-hole transporting layer between a pair of electrodes, the two layers comprising organic compounds and being in the form of film.
- the aluminum complex of 8-hydroxyquinoline namely tris(8-quinolinol)aluminum in the following structure of the formula (B); ##STR4## is preferably used as a quinoline derivative, a host material of the fluorescent emitting layer; in addition to it, there are used, for example, bis(8-quinolinol) magnesium, bis(benzo ⁇ f ⁇ -8-quinolinol)zinc, bis (2-methyl-8-quinolinolate)aluminum oxide, tris(8-quinolinol)indium, tris(5-methyl-8-quinolinol)aluminum, 8-quinolinol lithium, tris(5-chloro-8-quinolinol)gallium, bis(5-chloro-8-quinolinol)calcium, and poly[zinc(II)-bis(8-hydroxy-5-quinolinyl)methane].
- the quinacridone compound of the above formula (A1) or (C1) is contained, at a concentration of 0.01 wt % to 10 wt %, in the fluorescent emitting layer comprising the aluminum complex of 8-hydroxyquinoline. The reason is that emission with a higher luminance can be obtained at a low applied voltage.
- the cathode there may be used metal with a low work function and of a thickness of about 500 angstroms or more, such as aluminum, magnesium, indium, silver or alloys of the individual metals.
- a conductive material with a high work function for example, indium tin oxide (I.T.O.) of a thickness of about 1000 to 3000 angstroms, or gold of a thickness of about 800 to 1500 angstroms.
- I.T.O. indium tin oxide
- the electrode employing gold as its material gets semitransparent.
- organic positive-hole transporting layer 4 there may be used, singly or in a mixture, compounds of the following formulas (I) to (XII), known as CTM (carrier Transporting Materials). ##STR9##
- FIG. 1 shows a two-layer structures where an organic fluorescent film 3 and an organic positive-hole transporting layer 4 are arranged between a cathode 1 and an anode 2.
- an electroluminescent device of a three-layer structure where an organic electron transporting layer 5, for example, comprising perylene tetracarboxyl derivative of the following formula (XX); ##STR10## is arranged between the cathode and the fluorescent film 3.
- a fluorescent emitting layer containing a quinacridone compound as the guest substance is held in a quinoline derivative as the host material, as has been described above, so that a highly luminent emission can be brought over at a lower applied voltage.
- the luminous efficiency of the electroluminescent devices can be improved as well, rendering sharp the distribution pattern of the emission spectra thereof, so that the color purity of the emission color therefrom can be enhanced.
- organic fluorescent films containing the aluminum complex of 8-hydroxyquinoline of the above formula (B) in which quinacridone of the above formula (A1) is contained and dispersed to a concentration of 0.01 wt % to 10 wt % electroluminescent device in the structure as in FIG. 1 were fabricated as Examples 1 to 4, individually, employing the organic fluorescent films of four kinds of concentrations of 0.15 wt % to 5.5 wt % in Table 1. The film thickness of the organic fluorescent films was determined at 1 ⁇ m or less.
- the organic positive-hole transporting layer there was used a film comprising triphenyl amine derivative of the above formula (1) and having a film thickness of 500 angstroms.
- the metal electrode as cathode there was used a film comprising magnesium-aluminium alloy of a film thickness of 1600 angstroms.
- the transparent electrode as anode there was used an I.T.O. film of a film thickness of 2000 angstroms.
- Each of the films in such structures was formed by vacuum evaporation process, at the condition of a degree of vacuum of 1.5 ⁇ 10 -5 Torr of less and an evaporation rate of 3.5 angstroms/sec.
- FIG. 3 The emission characteristics of the device comprising the fluorescent emitting layer containing the guest substance of 1.1 wt % concentration are shown in FIG. 3.
- the symbol shows the change in the luminance of the electroluminescent device comprising a fluorescent film composed of a mixture of 8-hydroxyquinoline aluminum complex-quinacridone (Curve A); the symbol shows the change in the luminous efficiency of the electroluminescent device comprising a fluorescent film composed of a mixture of 8-hydroxyquinoline aluminum complex-quinacridone (Curve B).
- FIG. 4 The voltage- and current-specificity in the case are shown in FIG. 4, where in relation to the applied voltage, the symbol shows the change in the current density of the electroluminescent device comprising a fluorescent film composed of a mixture of 8-hydroxyquinoline aluminum complex-quinacridone (Curve C).
- FIGS. 3 and 4 the characteristics each regarding the changes in the luminance, luminous efficiency and current density of a conventional electroluminescent device comprising a fluorescent film composed of 8-hydroxyquinoline aluminum complex alone are shown as Curves a, b and c, in symbols ⁇ , ⁇ , and ⁇ .
- the distribution of the emission spectra, concerning the conventional electroluminescent device and the device of the present Example comprising the fluorescent emitting layer composed of the guest material of a concentration of 1.1 wt % were separately measured and shown in the graphs of FIGS. 5 and 6 representing the emission spectrum distribution.
- Example 5 At the same condition, there was fabricated an electroluminescent device of the structure shown in FIG. 1, containing an organic fluorescent film comprising the aluminum complex of 8-hydroxyquinoline of the above formula (B) in which the dehydro form of quinacridone of the above formula (C1) was contained and dispersed to a concentration of 0.7 wt %, and other functional films were identical as those in the above Example.
- the maximum emission was 49,400 cd/m 2 , having its peak at a 540 nm wave length of the emission spectrum, when the guest material concentration was 0.7 wt % in the electroluminescent device of Example 5 fabricated described above.
- the luminous efficiency of the device was 2.8 lm/w at 1,000 cd/m 2 , which was increased by two fold or more than the conventional one.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
TABLE 1 ______________________________________ Concentration of Maximum luminance guest material (cd/m.sup.2) ______________________________________ Example 1 0.15 32460 Example 2 0.55 45700 Example 3 1.1 36400 Example 4 5.5 3000 ______________________________________
Claims (6)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1229290 | 1990-01-22 | ||
JP2-12292 | 1990-01-22 | ||
JP2228852A JP2815472B2 (en) | 1990-01-22 | 1990-08-30 | EL device |
JP2-228852 | 1990-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US5227252A true US5227252A (en) | 1993-07-13 |
Family
ID=26347870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/643,985 Expired - Lifetime US5227252A (en) | 1990-01-22 | 1991-01-22 | Electroluminescent device |
Country Status (2)
Country | Link |
---|---|
US (1) | US5227252A (en) |
JP (1) | JP2815472B2 (en) |
Cited By (78)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399936A (en) * | 1992-04-30 | 1995-03-21 | Pioneer Electronic Corporation | Organic electroluminescent device |
WO1996010598A1 (en) * | 1994-09-30 | 1996-04-11 | Hoechst Aktiengesellschaft | Nitrogenous polymers used as electroluminescent materials |
US5529853A (en) * | 1993-03-17 | 1996-06-25 | Sanyo Electric Co., Ltd. | Organic electroluminescent element |
US5536949A (en) * | 1992-08-28 | 1996-07-16 | Idemistu Kosan Co., Ltd. | Charge injection auxiliary material and organic electroluminescence device containing the same |
US5593788A (en) * | 1996-04-25 | 1997-01-14 | Eastman Kodak Company | Organic electroluminescent devices with high operational stability |
US5616427A (en) * | 1995-06-05 | 1997-04-01 | Nec Corporation | Organic thin film EL device having long lifetime |
EP0766498A2 (en) * | 1995-09-29 | 1997-04-02 | Eastman Kodak Company | Organic electroluminescent devices with high operational stability |
EP0786925A2 (en) | 1996-01-26 | 1997-07-30 | Eastman Kodak Company | White light-emitting electroluminescent devices |
US5725651A (en) * | 1994-09-14 | 1998-03-10 | Ciba Specialty Chemicals Corporation | Mono-N-alkyl-quinacridone pigments |
US5742424A (en) * | 1992-12-22 | 1998-04-21 | Monsanto Company | Electrochromic materials and displays |
US5754329A (en) * | 1992-12-22 | 1998-05-19 | Monsanto Company | Electrochromic display laminates |
US5876633A (en) * | 1995-12-26 | 1999-03-02 | Monsanto Company | Electrochromic metal oxides |
US5876634A (en) * | 1995-12-26 | 1999-03-02 | Monsanto Company | Electrochromic tin oxide |
US5891511A (en) * | 1995-12-26 | 1999-04-06 | Monsanto Company | Addition of color to electrochromic displays |
US5935721A (en) * | 1998-03-20 | 1999-08-10 | Eastman Kodak Company | Organic electroluminescent elements for stable electroluminescent |
US5972247A (en) * | 1998-03-20 | 1999-10-26 | Eastman Kodak Company | Organic electroluminescent elements for stable blue electroluminescent devices |
US6020078A (en) * | 1998-12-18 | 2000-02-01 | Eastman Kodak Company | Green organic electroluminescent devices |
US6248458B1 (en) * | 1997-11-17 | 2001-06-19 | Lg Electronics Inc. | Organic electroluminescent device with improved long-term stability |
US6274065B1 (en) * | 1997-02-03 | 2001-08-14 | Ciba Specialty Chemicals Corporation | Process for the preparation of fluorescent compositions, fluorescent compositions and their use |
US6376107B1 (en) | 1998-01-31 | 2002-04-23 | Bayer Aktiengesellschaft | Electroluminescent arrangement using doped blend systems |
US6436559B1 (en) | 1999-11-12 | 2002-08-20 | Canon Kabushiki Kaisha | Organic luminescence device |
US6458476B1 (en) | 2000-01-27 | 2002-10-01 | Canon Kabushiki Kaisha | Organic luminescence device with spiro compound |
US6461749B2 (en) | 2000-03-31 | 2002-10-08 | Canon Kabushiki Kaisha | Organic boron compound, process for producing the compound and organic luminescence device using the compound |
US6461748B1 (en) | 2000-01-27 | 2002-10-08 | Canon Kabushiki Kaisha | Organic luminescence device with spiro compound having silicon spiro atom |
US6614175B2 (en) | 2001-01-26 | 2003-09-02 | Xerox Corporation | Organic light emitting devices |
EP1342769A1 (en) * | 1996-08-19 | 2003-09-10 | TDK Corporation | Organic EL Device |
WO2003095445A1 (en) | 2002-05-07 | 2003-11-20 | Lg Chem, Ltd. | New organic compounds for electroluminescence and organic electroluminescent devices using the same |
US6652997B2 (en) | 2001-04-27 | 2003-11-25 | Canon Kabushiki Kaisha | Organic luminescence device |
US20030232216A1 (en) * | 2001-09-28 | 2003-12-18 | Canon Kabushiki Kaisha | Organic luminescence device |
US20030235713A1 (en) * | 2001-09-03 | 2003-12-25 | Canon Kabushiki Kaisha | Organic luminescence device |
US20030234609A1 (en) * | 2001-03-08 | 2003-12-25 | Xerox Corporation | Devices with multiple organic-metal mixed layers |
US20040051447A1 (en) * | 2002-09-12 | 2004-03-18 | Canon Kabushiki Kaisha | Organic electroluminescent display and apparatus including organic electroluminescent display |
US6734623B1 (en) | 2000-07-31 | 2004-05-11 | Xerox Corporation | Annealed organic light emitting devices and method of annealing organic light emitting devices |
US6737177B2 (en) | 2001-11-08 | 2004-05-18 | Xerox Corporation | Red organic light emitting devices |
US6740429B2 (en) | 2001-11-08 | 2004-05-25 | Xerox Corporation | Organic light emitting devices |
US6753098B2 (en) | 2001-11-08 | 2004-06-22 | Xerox Corporation | Organic light emitting devices |
US6759146B2 (en) | 2001-11-08 | 2004-07-06 | Xerox Corporation | Organic devices |
US6765348B2 (en) | 2001-01-26 | 2004-07-20 | Xerox Corporation | Electroluminescent devices containing thermal protective layers |
US6773830B2 (en) | 2001-11-08 | 2004-08-10 | Xerox Corporation | Green organic light emitting devices |
US6830829B2 (en) | 2001-02-22 | 2004-12-14 | Canon Kabushiki Kaisha | Fused polynuclear compound and organic luminescence device |
US20040253389A1 (en) * | 2002-08-27 | 2004-12-16 | Koichi Suzuki | Fluorene compound and organic lumnescent device using the same |
US20040263067A1 (en) * | 2003-06-27 | 2004-12-30 | Canon Kabushiki Kaisha | Anthryl derivative group substituted compound, and organic luminescent device making use of same |
US20040265632A1 (en) * | 2003-06-27 | 2004-12-30 | Canon Kabushiki Kaisha | Organic electroluminescent device |
US20040265634A1 (en) * | 2002-06-27 | 2004-12-30 | Lelia Cosimbescu | Device containing green organic light-emitting diode |
US6841932B2 (en) | 2001-03-08 | 2005-01-11 | Xerox Corporation | Display devices with organic-metal mixed layer |
US20050051776A1 (en) * | 2003-06-16 | 2005-03-10 | Noriko Miyagi | Display device and method for manufacturing the same |
US20050099115A1 (en) * | 2003-06-27 | 2005-05-12 | Canon Kabushiki Kaisha | Substituted anthryl derivative and electoluminescence device using the same |
US20050236977A1 (en) * | 2004-04-12 | 2005-10-27 | Canon Kabushiki Kaisha | Fluorene compound and organic light-emitting device using same |
US20050244670A1 (en) * | 2002-08-28 | 2005-11-03 | Canon Kabushiki Kaisha | Monoamino compound and organic luminescence device using the same |
US20060017376A1 (en) * | 2004-07-20 | 2006-01-26 | Canon Kabushiki Kaisha | Organic light emitting device |
US20060022590A1 (en) * | 2004-08-02 | 2006-02-02 | Xerox Corporation | OLEDs having inorganic material containing anode capping layer |
US20060035108A1 (en) * | 2002-04-12 | 2006-02-16 | Canon Kabushiki Kaisha | Organic light-emitting device |
US20060051616A1 (en) * | 2004-09-08 | 2006-03-09 | Canon Kabushiki Kaisha | Organic compound and organic light-emitting device |
US20060068221A1 (en) * | 2002-08-28 | 2006-03-30 | Canon Kabushiki Kaisha | Organic light-emitting device |
US20060097227A1 (en) * | 2002-09-19 | 2006-05-11 | Canon Kabushiki Kaisha | Phenanthroline compound and organic light emitting device using same |
US20060115678A1 (en) * | 2004-11-26 | 2006-06-01 | Canon Kabushiki Kaisha | Aminoanthryl derivative-substituted pyrene compound and organic light-emitting device |
US20060113528A1 (en) * | 2004-11-26 | 2006-06-01 | Canon Kabushiki Kaisha | Organic light-emitting device |
US20060121311A1 (en) * | 2004-12-07 | 2006-06-08 | Xerox Corporation. | Organic electroluminescent devices |
US20060125378A1 (en) * | 2003-06-27 | 2006-06-15 | Canon Kabushiki Kaisha | Aminoanthryl derivative substitution compound and organic electroluminescence device using the same |
US20060134425A1 (en) * | 2002-08-27 | 2006-06-22 | Canon Kabushiki Kaisha | Spiro compound and organic luminescence device using the same |
US20060139893A1 (en) * | 2004-05-20 | 2006-06-29 | Atsushi Yoshimura | Stacked electronic component and manufacturing method thereof |
US20060166034A1 (en) * | 2002-08-30 | 2006-07-27 | Canon Kabushiki Kaisha | Monoaminofluorene compound and organic light-emitting device using the same |
US20060251920A1 (en) * | 2005-05-04 | 2006-11-09 | Xerox Corporation | Organic light emitting devices comprising a doped triazine electron transport layer |
US20060251919A1 (en) * | 2005-05-04 | 2006-11-09 | Xerox Corporation | Organic light emitting devices |
US20060261731A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Stacked oled structure |
US20060263629A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Intermediate electrodes for stacked OLEDs |
US20060261727A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Reduced reflectance display devices containing a thin-layer metal-organic mixed layer (MOML) |
US20060263628A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Display device with metal-organic mixed layer anodes |
US20060263593A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Display devices with light absorbing metal nonoparticle layers |
US20070063156A1 (en) * | 2005-09-20 | 2007-03-22 | Fuji Photo Film Co., Ltd. | Organic photoelectric conversion element and image element |
US7221095B2 (en) | 2003-06-16 | 2007-05-22 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and method for fabricating light emitting device |
US7224118B2 (en) | 2003-06-17 | 2007-05-29 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus having a wiring connected to a counter electrode via an opening portion in an insulating layer that surrounds a pixel electrode |
US20070138947A1 (en) * | 2005-12-21 | 2007-06-21 | Lg.Philips Lcd Co., Ltd. | Organic light emitting devices |
US20070138948A1 (en) * | 2005-12-21 | 2007-06-21 | Lg.Philips Lcd Co., Ltd. | Organic light emitting devices |
US20070141390A1 (en) * | 2005-12-21 | 2007-06-21 | Lg.Philips Lcd Co., Ltd. | Bifunctional compounds and OLED using the same |
US20070145886A1 (en) * | 2005-12-27 | 2007-06-28 | Lg. Philips Lcd Co., Ltd. | Organic light emitting devices |
US7301276B2 (en) * | 2000-03-27 | 2007-11-27 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting apparatus and method of manufacturing the same |
US7785719B2 (en) | 2004-11-26 | 2010-08-31 | Canon Kabushiki Kaisha | Fluorene compound and organic light-emitting device |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4302901B2 (en) | 2001-02-27 | 2009-07-29 | 三星モバイルディスプレイ株式會社 | Luminescent body and light emitting system |
JP2002343578A (en) | 2001-05-10 | 2002-11-29 | Nec Corp | Light-emitting body, light-emitting element and light- emitting display device |
JP3848262B2 (en) | 2002-03-27 | 2006-11-22 | キヤノン株式会社 | Oligofluorenylene compound and organic light-emitting device |
DE60331704D1 (en) | 2002-04-12 | 2010-04-29 | Konica Corp | Organic light-emitting element |
EP1424381A3 (en) | 2002-11-26 | 2005-01-19 | Konica Minolta Holdings, Inc. | Organic electroluminescent element, and display and illuminator |
EP1617710B1 (en) | 2003-04-23 | 2015-05-20 | Konica Minolta Holdings, Inc. | Material for organic electroluminescent device, organic electroluminescent device, illuminating device and display |
EP1651013A4 (en) | 2003-07-08 | 2008-07-23 | Konica Minolta Holdings Inc | Organic electroluminescent device, illuminating device, and display |
WO2005009088A1 (en) | 2003-07-23 | 2005-01-27 | Konica Minolta Holdings, Inc. | Organic electroluminescent device, illuminating device, and display |
US8231983B2 (en) | 2005-04-18 | 2012-07-31 | Konica Minolta Holdings Inc. | Organic electroluminescent device, display and illuminating device |
JP5076891B2 (en) | 2005-07-01 | 2012-11-21 | コニカミノルタホールディングス株式会社 | ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND LIGHTING DEVICE |
JPWO2007055186A1 (en) | 2005-11-09 | 2009-04-30 | コニカミノルタホールディングス株式会社 | Organic electroluminescence element, display device and lighting device |
JP5181676B2 (en) | 2006-01-05 | 2013-04-10 | コニカミノルタホールディングス株式会社 | Organic electroluminescence element, display device and lighting device |
EP1988143A4 (en) | 2006-02-20 | 2009-11-25 | Konica Minolta Holdings Inc | Organic electroluminescence element, white light emitting element, display device and illuminating device |
US20090091253A1 (en) | 2006-03-17 | 2009-04-09 | Konica Minolta Holdings, Inc. | Organic electroluminescent element, display device and lighting device |
US8920942B2 (en) | 2006-03-23 | 2014-12-30 | Konica Minolta Holdings, Inc. | Organic electroluminescent element, display device and illuminating device |
JPWO2007119473A1 (en) | 2006-03-30 | 2009-08-27 | コニカミノルタホールディングス株式会社 | ORGANIC ELECTROLUMINESCENT ELEMENT, METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT ELEMENT, LIGHTING DEVICE, AND DISPLAY DEVICE |
JP5463668B2 (en) | 2006-03-30 | 2014-04-09 | コニカミノルタ株式会社 | Organic electroluminescence element, lighting device and display device |
JP5493357B2 (en) | 2006-12-13 | 2014-05-14 | コニカミノルタ株式会社 | Organic electroluminescence element, display device and lighting device |
EP2479234B1 (en) | 2008-05-13 | 2017-06-21 | Konica Minolta Holdings, Inc. | Organic electroluminescent element, display device and lighting device |
WO2010150593A1 (en) | 2009-06-24 | 2010-12-29 | コニカミノルタホールディングス株式会社 | Organic electroluminescent element, display device, illuminating device and condensed polycyclic heterocyclic compound |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4032226A (en) * | 1975-08-25 | 1977-06-28 | Eastman Kodak Company | Photoimmobilized electrophoretic recording |
US4769292A (en) * | 1987-03-02 | 1988-09-06 | Eastman Kodak Company | Electroluminescent device with modified thin film luminescent zone |
JPS63264692A (en) * | 1987-03-02 | 1988-11-01 | イーストマン・コダック・カンパニー | Electric field light emitting device having improved membrane light emitting band |
US4793691A (en) * | 1984-12-25 | 1988-12-27 | Ricoh Company, Ltd. | Liquid crystal color display device |
US4950950A (en) * | 1989-05-18 | 1990-08-21 | Eastman Kodak Company | Electroluminescent device with silazane-containing luminescent zone |
-
1990
- 1990-08-30 JP JP2228852A patent/JP2815472B2/en not_active Expired - Fee Related
-
1991
- 1991-01-22 US US07/643,985 patent/US5227252A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4032226A (en) * | 1975-08-25 | 1977-06-28 | Eastman Kodak Company | Photoimmobilized electrophoretic recording |
US4793691A (en) * | 1984-12-25 | 1988-12-27 | Ricoh Company, Ltd. | Liquid crystal color display device |
US4769292A (en) * | 1987-03-02 | 1988-09-06 | Eastman Kodak Company | Electroluminescent device with modified thin film luminescent zone |
JPS63264692A (en) * | 1987-03-02 | 1988-11-01 | イーストマン・コダック・カンパニー | Electric field light emitting device having improved membrane light emitting band |
US4950950A (en) * | 1989-05-18 | 1990-08-21 | Eastman Kodak Company | Electroluminescent device with silazane-containing luminescent zone |
Cited By (166)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399936A (en) * | 1992-04-30 | 1995-03-21 | Pioneer Electronic Corporation | Organic electroluminescent device |
US5536949A (en) * | 1992-08-28 | 1996-07-16 | Idemistu Kosan Co., Ltd. | Charge injection auxiliary material and organic electroluminescence device containing the same |
US5812300A (en) * | 1992-12-22 | 1998-09-22 | Monsanto Company | Electrochromic materials and displays |
US5754329A (en) * | 1992-12-22 | 1998-05-19 | Monsanto Company | Electrochromic display laminates |
US5742424A (en) * | 1992-12-22 | 1998-04-21 | Monsanto Company | Electrochromic materials and displays |
US5529853A (en) * | 1993-03-17 | 1996-06-25 | Sanyo Electric Co., Ltd. | Organic electroluminescent element |
US5725651A (en) * | 1994-09-14 | 1998-03-10 | Ciba Specialty Chemicals Corporation | Mono-N-alkyl-quinacridone pigments |
CN1066163C (en) * | 1994-09-30 | 2001-05-23 | 赫彻斯特股份公司 | Nitrogenous polymers used as electroluminescent materials |
WO1996010598A1 (en) * | 1994-09-30 | 1996-04-11 | Hoechst Aktiengesellschaft | Nitrogenous polymers used as electroluminescent materials |
US5874179A (en) * | 1994-09-30 | 1999-02-23 | Hoechst Aktiengesellschaft | Nitrogen-containing polymers as electroluminescent materials |
US5616427A (en) * | 1995-06-05 | 1997-04-01 | Nec Corporation | Organic thin film EL device having long lifetime |
EP0766498A3 (en) * | 1995-09-29 | 1997-07-09 | Eastman Kodak Co | Organic electroluminescent devices with high operational stability |
EP0766498A2 (en) * | 1995-09-29 | 1997-04-02 | Eastman Kodak Company | Organic electroluminescent devices with high operational stability |
US5876633A (en) * | 1995-12-26 | 1999-03-02 | Monsanto Company | Electrochromic metal oxides |
US6165388A (en) * | 1995-12-26 | 2000-12-26 | Monsanto Company | Electrochromic metal oxides |
US5876634A (en) * | 1995-12-26 | 1999-03-02 | Monsanto Company | Electrochromic tin oxide |
US5891511A (en) * | 1995-12-26 | 1999-04-06 | Monsanto Company | Addition of color to electrochromic displays |
US6084701A (en) * | 1995-12-26 | 2000-07-04 | Monsanto Company | Electrochromic tin oxide |
EP0786925A2 (en) | 1996-01-26 | 1997-07-30 | Eastman Kodak Company | White light-emitting electroluminescent devices |
US5593788A (en) * | 1996-04-25 | 1997-01-14 | Eastman Kodak Company | Organic electroluminescent devices with high operational stability |
EP1342769A1 (en) * | 1996-08-19 | 2003-09-10 | TDK Corporation | Organic EL Device |
EP1992672A1 (en) * | 1996-08-19 | 2008-11-19 | TDK Corporation | Organic electroluminescent device |
US6274065B1 (en) * | 1997-02-03 | 2001-08-14 | Ciba Specialty Chemicals Corporation | Process for the preparation of fluorescent compositions, fluorescent compositions and their use |
US6562981B2 (en) | 1997-02-03 | 2003-05-13 | Ciba Specialty Chemicals Corporation | Benzo (4,5) imidazo (2,1-a) isoindol-11-ones |
US6413655B2 (en) | 1997-02-03 | 2002-07-02 | Ciba Specialty Chemicals Corporation | Fluorescent materials and their use |
US7638794B2 (en) | 1997-11-17 | 2009-12-29 | Lg Electronics Inc. | Organoelectroluminescent device having a substrate, a negative electrode, an organic electroluminescent layer, a buffer layer containing an adhesion-increasing porphyrinic compound and a cathode electrode |
US20100044740A1 (en) * | 1997-11-17 | 2010-02-25 | Lg Electronics Inc. | Semiconductor device |
US20040104397A1 (en) * | 1997-11-17 | 2004-06-03 | Yoon Jong Geun | Semiconductor device |
US7285339B2 (en) | 1997-11-17 | 2007-10-23 | Lg Electronics Inc. | Organic electroluminescent device with improved long-term stability |
US6248458B1 (en) * | 1997-11-17 | 2001-06-19 | Lg Electronics Inc. | Organic electroluminescent device with improved long-term stability |
US7847286B2 (en) | 1997-11-17 | 2010-12-07 | Lg Electronics Inc. | Semiconductor device |
US6663985B2 (en) | 1997-11-17 | 2003-12-16 | Lg Electronics Inc. | Organic electroluminescent device with improved long-term stability |
US20050074628A1 (en) * | 1997-11-17 | 2005-04-07 | Lg Electronics Inc. | Organic electroluminescent device with improved long-term stability |
US6376107B1 (en) | 1998-01-31 | 2002-04-23 | Bayer Aktiengesellschaft | Electroluminescent arrangement using doped blend systems |
US5935721A (en) * | 1998-03-20 | 1999-08-10 | Eastman Kodak Company | Organic electroluminescent elements for stable electroluminescent |
US5972247A (en) * | 1998-03-20 | 1999-10-26 | Eastman Kodak Company | Organic electroluminescent elements for stable blue electroluminescent devices |
US6020078A (en) * | 1998-12-18 | 2000-02-01 | Eastman Kodak Company | Green organic electroluminescent devices |
US6436559B1 (en) | 1999-11-12 | 2002-08-20 | Canon Kabushiki Kaisha | Organic luminescence device |
US6461748B1 (en) | 2000-01-27 | 2002-10-08 | Canon Kabushiki Kaisha | Organic luminescence device with spiro compound having silicon spiro atom |
US6458476B1 (en) | 2000-01-27 | 2002-10-01 | Canon Kabushiki Kaisha | Organic luminescence device with spiro compound |
US7301276B2 (en) * | 2000-03-27 | 2007-11-27 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting apparatus and method of manufacturing the same |
US6461749B2 (en) | 2000-03-31 | 2002-10-08 | Canon Kabushiki Kaisha | Organic boron compound, process for producing the compound and organic luminescence device using the compound |
US6743067B2 (en) | 2000-07-31 | 2004-06-01 | Xerox Corporation | Annealed organic light emitting devices and methods of annealing organic light emitting devices |
US6734623B1 (en) | 2000-07-31 | 2004-05-11 | Xerox Corporation | Annealed organic light emitting devices and method of annealing organic light emitting devices |
US6614175B2 (en) | 2001-01-26 | 2003-09-02 | Xerox Corporation | Organic light emitting devices |
US6765348B2 (en) | 2001-01-26 | 2004-07-20 | Xerox Corporation | Electroluminescent devices containing thermal protective layers |
US20050048318A1 (en) * | 2001-02-22 | 2005-03-03 | Canon Kabushiki Kaisha | Organic luminescence device with a fused polynuclear compound |
US6994922B2 (en) | 2001-02-22 | 2006-02-07 | Canon Kabushiki Kaisha | Organic luminescence device with a fused polynuclear compound |
US6830829B2 (en) | 2001-02-22 | 2004-12-14 | Canon Kabushiki Kaisha | Fused polynuclear compound and organic luminescence device |
US6841932B2 (en) | 2001-03-08 | 2005-01-11 | Xerox Corporation | Display devices with organic-metal mixed layer |
US20030234609A1 (en) * | 2001-03-08 | 2003-12-25 | Xerox Corporation | Devices with multiple organic-metal mixed layers |
US7288887B2 (en) | 2001-03-08 | 2007-10-30 | Lg.Philips Lcd Co. Ltd. | Devices with multiple organic-metal mixed layers |
US6652997B2 (en) | 2001-04-27 | 2003-11-25 | Canon Kabushiki Kaisha | Organic luminescence device |
US20030235713A1 (en) * | 2001-09-03 | 2003-12-25 | Canon Kabushiki Kaisha | Organic luminescence device |
US6916555B2 (en) | 2001-09-03 | 2005-07-12 | Canon Kabushiki Kaisha | Organic luminescence device |
US20030232216A1 (en) * | 2001-09-28 | 2003-12-18 | Canon Kabushiki Kaisha | Organic luminescence device |
US6998182B2 (en) | 2001-09-28 | 2006-02-14 | Canon Kabushiki Kaisha | Organic luminescence device |
US6773830B2 (en) | 2001-11-08 | 2004-08-10 | Xerox Corporation | Green organic light emitting devices |
US6759146B2 (en) | 2001-11-08 | 2004-07-06 | Xerox Corporation | Organic devices |
US6753098B2 (en) | 2001-11-08 | 2004-06-22 | Xerox Corporation | Organic light emitting devices |
US6740429B2 (en) | 2001-11-08 | 2004-05-25 | Xerox Corporation | Organic light emitting devices |
US6737177B2 (en) | 2001-11-08 | 2004-05-18 | Xerox Corporation | Red organic light emitting devices |
US20060035108A1 (en) * | 2002-04-12 | 2006-02-16 | Canon Kabushiki Kaisha | Organic light-emitting device |
US7232618B2 (en) | 2002-04-12 | 2007-06-19 | Canon Kabushiki Kaisha | Organic light-emitting device |
US20040067387A1 (en) * | 2002-05-07 | 2004-04-08 | Ji-Eun Kim | Organic compounds for electroluminescence and organic electroluminescent devices using the same |
US7485733B2 (en) | 2002-05-07 | 2009-02-03 | Lg Chem, Ltd. | Organic compounds for electroluminescence and organic electroluminescent devices using the same |
WO2003095445A1 (en) | 2002-05-07 | 2003-11-20 | Lg Chem, Ltd. | New organic compounds for electroluminescence and organic electroluminescent devices using the same |
US7604874B2 (en) | 2002-05-07 | 2009-10-20 | Lg Chem, Ltd. | Organic compounds for electroluminescence and organic electroluminescent devices using the same |
US20070037012A1 (en) * | 2002-05-07 | 2007-02-15 | Ji-Eun Kim | Organic compounds for electroluminescence and organic electroluminescent devices using the same |
US20040265634A1 (en) * | 2002-06-27 | 2004-12-30 | Lelia Cosimbescu | Device containing green organic light-emitting diode |
US20040253389A1 (en) * | 2002-08-27 | 2004-12-16 | Koichi Suzuki | Fluorene compound and organic lumnescent device using the same |
US7510781B2 (en) | 2002-08-27 | 2009-03-31 | Canon Kabushiki Kaisha | Spiro compound and organic luminescence device using the same |
US20060134425A1 (en) * | 2002-08-27 | 2006-06-22 | Canon Kabushiki Kaisha | Spiro compound and organic luminescence device using the same |
US7241513B2 (en) | 2002-08-27 | 2007-07-10 | Canon Kabushiki Kaisha | Fluorene compound and organic luminescent device using the same |
US20060068221A1 (en) * | 2002-08-28 | 2006-03-30 | Canon Kabushiki Kaisha | Organic light-emitting device |
US7387845B2 (en) | 2002-08-28 | 2008-06-17 | Canon Kabushiki Kaisha | Monoamino compound and organic luminescence device using the same |
US7632577B2 (en) | 2002-08-28 | 2009-12-15 | Canon Kabushiki Kaisha | Organic light-emitting device |
US20050244670A1 (en) * | 2002-08-28 | 2005-11-03 | Canon Kabushiki Kaisha | Monoamino compound and organic luminescence device using the same |
US7691491B2 (en) | 2002-08-30 | 2010-04-06 | Canon Kabushiki Kaisha | Monoaminofluorene compound and organic light-emitting device using the same |
US20060166034A1 (en) * | 2002-08-30 | 2006-07-27 | Canon Kabushiki Kaisha | Monoaminofluorene compound and organic light-emitting device using the same |
US7355339B2 (en) | 2002-09-12 | 2008-04-08 | Canon Kabushiki Kaisha | Organic electroluminescent display and apparatus including organic electroluminescent display |
US20040051447A1 (en) * | 2002-09-12 | 2004-03-18 | Canon Kabushiki Kaisha | Organic electroluminescent display and apparatus including organic electroluminescent display |
US20090218940A1 (en) * | 2002-09-19 | 2009-09-03 | Canon Kabushiki Kaisha | Phenanthroline compound and organic light emitting device using same |
US7982213B2 (en) | 2002-09-19 | 2011-07-19 | Canon Kabushiki Kaisha | Phenanthroline compound and organic light emitting device using same |
US20060097227A1 (en) * | 2002-09-19 | 2006-05-11 | Canon Kabushiki Kaisha | Phenanthroline compound and organic light emitting device using same |
US7550594B2 (en) | 2002-09-19 | 2009-06-23 | Canon Kabushiki Kaisha | Phenanthroline compound and organic light emitting device using same |
US20110210335A1 (en) * | 2003-06-16 | 2011-09-01 | Semiconductor Energy Laboratory Co., Ltd. | Display Device and Method for Manufacturing the Same |
US7943938B2 (en) | 2003-06-16 | 2011-05-17 | Semiconductor Energy Laboratory | Display device with light-emitting layer |
US9261722B2 (en) | 2003-06-16 | 2016-02-16 | Semiconductor Energy Laboratory Co., Ltd. | Display device and method for manufacturing the same |
US7161184B2 (en) | 2003-06-16 | 2007-01-09 | Semiconductor Energy Laboratory Co., Ltd. | Display device and method for manufacturing the same |
US11387263B2 (en) | 2003-06-16 | 2022-07-12 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device |
US8759835B2 (en) | 2003-06-16 | 2014-06-24 | Semiconductor Energy Laboratory Co., Ltd. | Display device and method for manufacturing the same |
US8609181B2 (en) | 2003-06-16 | 2013-12-17 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and method for fabricating light emitting device |
US7221095B2 (en) | 2003-06-16 | 2007-05-22 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and method for fabricating light emitting device |
US10381385B2 (en) | 2003-06-16 | 2019-08-13 | Semiconductor Energy Laboratory Co., Ltd. | Display device and method for manufacturing the same |
US20070257602A1 (en) * | 2003-06-16 | 2007-11-08 | Semiconductor Energy Laboratory Co., Ltd. | Display Device and Method for Manufacturing the Same |
US9997542B2 (en) | 2003-06-16 | 2018-06-12 | Semiconductor Energy Laboratory Co., Ltd. | Display device and method for manufacturing the same |
US7579774B2 (en) | 2003-06-16 | 2009-08-25 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and method for fabricating light emitting device |
US20090286445A1 (en) * | 2003-06-16 | 2009-11-19 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and method for fabricating light emitting device |
US20070205718A1 (en) * | 2003-06-16 | 2007-09-06 | Semiconductor Energy Laboratory Co., Ltd. | Light Emitting Device and Method for Fabricating Light Emitting Device |
US20050051776A1 (en) * | 2003-06-16 | 2005-03-10 | Noriko Miyagi | Display device and method for manufacturing the same |
US7880380B2 (en) | 2003-06-17 | 2011-02-01 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus |
US20110108842A1 (en) * | 2003-06-17 | 2011-05-12 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus |
US9887241B2 (en) | 2003-06-17 | 2018-02-06 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus |
US20080164474A1 (en) * | 2003-06-17 | 2008-07-10 | Semiconductor Energy Laboratory Co., Ltd. | Display Device and Electronic Apparatus |
US7224118B2 (en) | 2003-06-17 | 2007-05-29 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus having a wiring connected to a counter electrode via an opening portion in an insulating layer that surrounds a pixel electrode |
US8917016B2 (en) | 2003-06-17 | 2014-12-23 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus |
US7411344B2 (en) | 2003-06-17 | 2008-08-12 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus |
US20040263067A1 (en) * | 2003-06-27 | 2004-12-30 | Canon Kabushiki Kaisha | Anthryl derivative group substituted compound, and organic luminescent device making use of same |
US7129386B2 (en) | 2003-06-27 | 2006-10-31 | Canon Kabushiki Kaisha | Substituted anthryl derivative and electroluminescence device using the same |
US7375250B2 (en) | 2003-06-27 | 2008-05-20 | Canon Kabushiki Kaisha | Aminoanthryl derivative substitution compound and organic electroluminescence device using the same |
US7358409B2 (en) | 2003-06-27 | 2008-04-15 | Canon Kabushiki Kaisha | Substituted anthryl derivative and electroluminescence device using the same |
US20040265632A1 (en) * | 2003-06-27 | 2004-12-30 | Canon Kabushiki Kaisha | Organic electroluminescent device |
US20060255723A1 (en) * | 2003-06-27 | 2006-11-16 | Canon Kabushiki Kaisha | Substituted anthryl derivative and electroluminescence device using the same |
US7173131B2 (en) | 2003-06-27 | 2007-02-06 | Canon Kabushiki Kaisha | Anthryl derivative group substituted compound, and organic luminescent device making use of same |
US20060267488A1 (en) * | 2003-06-27 | 2006-11-30 | Canon Kabushiki Kaisha | Substituted anthryl derivative and electroluminescence device using the same |
US20050099115A1 (en) * | 2003-06-27 | 2005-05-12 | Canon Kabushiki Kaisha | Substituted anthryl derivative and electoluminescence device using the same |
US7309533B2 (en) | 2003-06-27 | 2007-12-18 | Canon Kabushiki Kaisha | Substituted anthryl derivative and electroluminescence device using the same |
US7491450B2 (en) | 2003-06-27 | 2009-02-17 | Canon Kabushiki Kaisha | Organic electroluminescent device |
US20060125378A1 (en) * | 2003-06-27 | 2006-06-15 | Canon Kabushiki Kaisha | Aminoanthryl derivative substitution compound and organic electroluminescence device using the same |
US20050236977A1 (en) * | 2004-04-12 | 2005-10-27 | Canon Kabushiki Kaisha | Fluorene compound and organic light-emitting device using same |
US7691492B2 (en) | 2004-04-12 | 2010-04-06 | Canon Kabushiki Kaisha | Fluorene compound and organic light-emitting device using same |
US20060139893A1 (en) * | 2004-05-20 | 2006-06-29 | Atsushi Yoshimura | Stacked electronic component and manufacturing method thereof |
US20100019236A1 (en) * | 2004-07-20 | 2010-01-28 | Canon Kabushiki Kaisha | Organic light emitting device |
US20060017376A1 (en) * | 2004-07-20 | 2006-01-26 | Canon Kabushiki Kaisha | Organic light emitting device |
US7919199B2 (en) | 2004-07-20 | 2011-04-05 | Canon Kabushiki Kaisha | Organic light emitting device |
US7604873B2 (en) | 2004-07-20 | 2009-10-20 | Canon Kabushiki Kaisha | Organic light emitting device |
US20110089822A1 (en) * | 2004-07-20 | 2011-04-21 | Canon Kabushiki Kaisha | Organic light emitting device |
US8404363B2 (en) | 2004-07-20 | 2013-03-26 | Canon Kabushiki Kaisha | Organic light emitting device |
US20060022590A1 (en) * | 2004-08-02 | 2006-02-02 | Xerox Corporation | OLEDs having inorganic material containing anode capping layer |
EP3057152A1 (en) | 2004-08-02 | 2016-08-17 | LG Display Co., Ltd. | Oleds having inorganic material containing anode capping layer |
US7449831B2 (en) | 2004-08-02 | 2008-11-11 | Lg Display Co., Ltd. | OLEDs having inorganic material containing anode capping layer |
KR101221124B1 (en) | 2004-08-02 | 2013-01-11 | 엘지디스플레이 주식회사 | Oleds having inorganic material containing anode capping layer |
US20060051616A1 (en) * | 2004-09-08 | 2006-03-09 | Canon Kabushiki Kaisha | Organic compound and organic light-emitting device |
US7749617B2 (en) | 2004-09-08 | 2010-07-06 | Canon Kabushiki Kaisha | Organic compound and organic light-emitting device |
US7709104B2 (en) | 2004-11-26 | 2010-05-04 | Canon Kabushiki Kaisha | Aminoanthryl derivative-substituted pyrene compound and organic light-emitting device |
US20060113528A1 (en) * | 2004-11-26 | 2006-06-01 | Canon Kabushiki Kaisha | Organic light-emitting device |
US7785719B2 (en) | 2004-11-26 | 2010-08-31 | Canon Kabushiki Kaisha | Fluorene compound and organic light-emitting device |
US7952269B2 (en) | 2004-11-26 | 2011-05-31 | Canon Kabushiki Kaisha | Organic light-emitting device |
US20060115678A1 (en) * | 2004-11-26 | 2006-06-01 | Canon Kabushiki Kaisha | Aminoanthryl derivative-substituted pyrene compound and organic light-emitting device |
US7402346B2 (en) | 2004-12-07 | 2008-07-22 | Lg. Philips Lcd Co., Ltd. | Organic electroluminescent devices |
US20060121311A1 (en) * | 2004-12-07 | 2006-06-08 | Xerox Corporation. | Organic electroluminescent devices |
US7777407B2 (en) | 2005-05-04 | 2010-08-17 | Lg Display Co., Ltd. | Organic light emitting devices comprising a doped triazine electron transport layer |
US20060251919A1 (en) * | 2005-05-04 | 2006-11-09 | Xerox Corporation | Organic light emitting devices |
US20060251920A1 (en) * | 2005-05-04 | 2006-11-09 | Xerox Corporation | Organic light emitting devices comprising a doped triazine electron transport layer |
US8487527B2 (en) | 2005-05-04 | 2013-07-16 | Lg Display Co., Ltd. | Organic light emitting devices |
US7750561B2 (en) | 2005-05-20 | 2010-07-06 | Lg Display Co., Ltd. | Stacked OLED structure |
US20060263593A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Display devices with light absorbing metal nonoparticle layers |
US7943244B2 (en) | 2005-05-20 | 2011-05-17 | Lg Display Co., Ltd. | Display device with metal-organic mixed layer anodes |
US7795806B2 (en) | 2005-05-20 | 2010-09-14 | Lg Display Co., Ltd. | Reduced reflectance display devices containing a thin-layer metal-organic mixed layer (MOML) |
US20060263629A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Intermediate electrodes for stacked OLEDs |
DE102006063041B3 (en) | 2005-05-20 | 2021-09-23 | Lg Display Co., Ltd. | Display devices having light-absorbing layers with metal nanoparticles |
US20060261727A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Reduced reflectance display devices containing a thin-layer metal-organic mixed layer (MOML) |
US20060263628A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Display device with metal-organic mixed layer anodes |
US7728517B2 (en) | 2005-05-20 | 2010-06-01 | Lg Display Co., Ltd. | Intermediate electrodes for stacked OLEDs |
US7811679B2 (en) | 2005-05-20 | 2010-10-12 | Lg Display Co., Ltd. | Display devices with light absorbing metal nanoparticle layers |
US20060261731A1 (en) * | 2005-05-20 | 2006-11-23 | Xerox Corporation | Stacked oled structure |
US20070063156A1 (en) * | 2005-09-20 | 2007-03-22 | Fuji Photo Film Co., Ltd. | Organic photoelectric conversion element and image element |
US20070138947A1 (en) * | 2005-12-21 | 2007-06-21 | Lg.Philips Lcd Co., Ltd. | Organic light emitting devices |
US7638206B2 (en) | 2005-12-21 | 2009-12-29 | Lg Display Co., Ltd. | Bifunctional compounds and OLED using the same |
US7352125B2 (en) | 2005-12-21 | 2008-04-01 | Lg.Philips Lcd Co., Ltd. | Organic light emitting devices with hole impeding materials |
US20070141390A1 (en) * | 2005-12-21 | 2007-06-21 | Lg.Philips Lcd Co., Ltd. | Bifunctional compounds and OLED using the same |
US20070138948A1 (en) * | 2005-12-21 | 2007-06-21 | Lg.Philips Lcd Co., Ltd. | Organic light emitting devices |
US7977862B2 (en) | 2005-12-21 | 2011-07-12 | Lg Display Co., Ltd. | Organic light emitting devices |
US7645525B2 (en) | 2005-12-27 | 2010-01-12 | Lg Display Co., Ltd. | Organic light emitting devices |
US20070145886A1 (en) * | 2005-12-27 | 2007-06-28 | Lg. Philips Lcd Co., Ltd. | Organic light emitting devices |
Also Published As
Publication number | Publication date |
---|---|
JP2815472B2 (en) | 1998-10-27 |
JPH03255190A (en) | 1991-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5227252A (en) | Electroluminescent device | |
US5276381A (en) | Organic electroluminescent device | |
JP2891783B2 (en) | Organic electroluminescence device | |
JP3300069B2 (en) | Organic electroluminescence device | |
US5069975A (en) | Electroluminescent element | |
JPH05121172A (en) | Organic electroluminescence element | |
JPH03792A (en) | Electroluminescent element | |
JPH0917574A (en) | Organic electroluminescence element | |
JPH0517764A (en) | Organic electroluminescence element | |
JPH11185955A (en) | Organic el color display | |
US5122711A (en) | Electroluminescent device | |
JP2749407B2 (en) | EL device | |
JPH03162481A (en) | Electroluminescent element | |
US6187457B1 (en) | Organic EL element and method of producing the same | |
JP2881212B2 (en) | EL device | |
JP3744103B2 (en) | Organic electroluminescence device | |
JP3300065B2 (en) | Organic electroluminescence device | |
JP2888740B2 (en) | Organic electroluminescence device | |
JPWO2002094965A1 (en) | Organic electroluminescence device | |
JPH03177486A (en) | Electrical field luminescent element | |
JPH06145658A (en) | Electroluminescent element | |
JPH0693257A (en) | Organic electroluminescent element | |
JP3738870B2 (en) | Organic electroluminescence device | |
JPH03162484A (en) | Electroluminescent element | |
JP3241484B2 (en) | Organic electroluminescence device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: PIONEER ELECTRONIC CORPORATION, 4-1, MEGURO 1-CHOM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MURAYAMA, RYUJI;WAKIMOTO, TAKEO;NAKADA, HITOSHI;AND OTHERS;REEL/FRAME:005618/0146 Effective date: 19910205 Owner name: NIPPON KAYAKU KABUSHIKI KAISHA, 11-2, FUJIMI 1-CHO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MURAYAMA, RYUJI;WAKIMOTO, TAKEO;NAKADA, HITOSHI;AND OTHERS;REEL/FRAME:005618/0146 Effective date: 19910205 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 12 |